<template>
  <div>
    <el-row class="do-exam-title">
      <el-col :span="24">
        <span :key="item.itemOrder" v-for="item in answer.answerItems">
          <el-tag
            :type="questionCompleted(item.completed)"
            class="do-exam-title-tag"
            @click="goAnchor('#question-' + item.itemOrder)"
            >{{ item.itemOrder }}</el-tag
          >
        </span>
        <span class="do-exam-time">
          <label>剩余时间：</label>
          <label>{{ formatSeconds(remainTime) }}</label>
        </span>
      </el-col>
    </el-row>
    <el-row class="do-exam-title-hidden">
      <el-col :span="24">
        <span :key="item.itemOrder" v-for="item in answer.answerItems">
          <el-tag class="do-exam-title-tag">{{ item.itemOrder }}</el-tag>
        </span>
        <span class="do-exam-time">
          <label>剩余时间：</label>
        </span>
      </el-col>
    </el-row>
    <el-container class="app-item-contain">
      <el-header class="align-center">
        <h1>{{ form.name }}</h1>
        <div>
          <span class="question-title-padding"
            >试卷总分：{{ form.total_score }}</span
          >
          <span class="question-title-padding"
            >考试时间：{{ form.duration }}分钟</span
          >
        </div>
      </el-header>
      <el-main>
        <!-- <el-row :key="index"  v-for="(problem,index) in form.problems">
            <h3>{{problem.detail}}</h3>
            <el-card class="exampaper-item-box" v-if="titleItem.questionItems.length!==0">
              <el-form-item :key="questionItem.itemOrder" :label="questionItem.itemOrder+'.'"
                            v-for="questionItem in titleItem.questionItems"
                            class="exam-question-item" label-width="50px" :id="'question-'+ questionItem.itemOrder">
                <QuestionEdit :qType="questionItem.questionType" :question="questionItem"
                              :answer="answer.answerItems[questionItem.itemOrder-1]"/>
              </el-form-item>
            </el-card>
          </el-row> -->
        <!-- <el-form class="doForm" :model="form" ref="subFormRef" :rules="subFormRules">
            <el-form-item prop="answer" :key="index" v-for="(problem, index) in form.problems">
              <p>{{ `${index + 1}、${problem.detail}(${problem.score}分)` }}</p>
              <el-radio-group v-model="problem.answer">
                <el-radio :label="1">A.{{ problem.a_option }}</el-radio>
                <el-radio :label="2">B.{{ problem.b_option }}</el-radio>
                <el-radio :label="3">C.{{ problem.c_option }}</el-radio>
                <el-radio :label="4">D.{{ problem.d_option }}</el-radio>
              </el-radio-group>
            </el-form-item>
            <el-row class="do-align-center">
            <el-button type="primary" @click="submitForm">提交</el-button>
            <el-button>取消</el-button>
          </el-row>
          </el-form> -->

        <el-form class="doForm" :model="subForm">
          <el-form-item :key="index" v-for="(problem, index) in form.problems">
            <p>{{ `${index + 1}、${problem.detail}(${problem.score}分)` }}</p>
            <el-radio-group v-model="subForm.do_problems[index].answer">
              <!-- subForm.problem[index].answer -->
              <el-radio :label="1">A.{{ problem.a_option }}</el-radio>
              <el-radio :label="2">B.{{ problem.b_option }}</el-radio>
              <el-radio :label="3">C.{{ problem.c_option }}</el-radio>
              <el-radio :label="4">D.{{ problem.d_option }}</el-radio>
            </el-radio-group>
          </el-form-item>
          <el-row class="do-align-center">
            <el-button type="primary" @click="submitForm">提交</el-button>
            <el-button>取消</el-button>
          </el-row>
        </el-form>
      </el-main>
    </el-container>
  </div>
</template>

<script>
import { formatSeconds } from '@/utils'
import { examPaperData, submitExamPaperData } from '@/api/exam-paper'

export default {
  data () {
    return {
      form: {},
      subForm: {
        do_exam_paper_id: '',
        do_problems: []
      },
      formLoading: false,
      answer: {
        questionId: null,
        doTime: 0,
        answerItems: []
      },
      timer: null,
      remainTime: 0
    }
  },
  created () {
    let id = this.$route.query.id
    let _this = this
    if (id && parseInt(id) !== 0) {
      _this.formLoading = true

      examPaperData({ id }).then(res => {
        const { data } = res
        _this.form = data
        _this.formLoading = false

        /* 处理初始数据 */
        this.subForm.do_exam_paper_id = _this.form.do_exam_paper_id
        _this.form.problems.forEach(v => {
          _this.subForm.do_problems.push({
            answer: 1,
            id: v.id
          })
        })
      })

      // examPaperApi.select(id).then(re => {
      //   _this.form = re.response
      //   _this.remainTime = re.response.suggestTime * 60
      //   _this.initAnswer()
      //   _this.timeReduce()
      //   _this.formLoading = false
      // })
    }
  },
  mounted () {},
  beforeDestroy () {
    window.clearInterval(this.timer)
  },
  methods: {
    formatSeconds (theTime) {
      return formatSeconds(theTime)
    },
    timeReduce () {
      let _this = this
      this.timer = setInterval(function () {
        if (_this.remainTime <= 0) {
          _this.submitForm()
        } else {
          ++_this.answer.doTime
          --_this.remainTime
        }
      }, 1000)
    },
    questionCompleted (completed) {
      return this.enumFormat(this.doCompletedTag, completed)
    },
    goAnchor (selector) {
      this.$el.querySelector(selector).scrollIntoView({
        behavior: 'instant',
        block: 'center',
        inline: 'nearest'
      })
    },
    initAnswer () {
      this.answer.id = this.form.id
      let titleItemArray = this.form.titleItems
      for (let tIndex in titleItemArray) {
        let questionArray = titleItemArray[tIndex].questionItems
        for (let qIndex in questionArray) {
          let question = questionArray[qIndex]
          this.answer.answerItems.push({
            questionId: question.id,
            content: null,
            contentArray: [],
            completed: false,
            itemOrder: question.itemOrder
          })
        }
      }
    },
    submitForm () {
      let _this = this
      window.clearInterval(_this.timer)
      _this.formLoading = true
      console.log(this.subForm)
      submitExamPaperData(this.subForm).then(res => {
        console.log(res)
        _this.formLoading = false
        _this.$router.push({
          path: '/read',
          query: { id: _this.subForm.do_exam_paper_id }
        })
        _this.$message.success('提交成功')
      })
      // examPaperAnswerApi
      //   .answerSubmit(this.answer)
      //   .then(re => {
      //     if (re.code === 1) {
      //       _this.$alert("试卷得分：" + re.response + "分", "考试结果", {
      //         confirmButtonText: "返回考试记录",
      //         callback: action => {
      //           _this.$router.push("/record/index");
      //         }
      //       });
      //     } else {
      //       _this.$message.error(re.message);
      //     }
      //     _this.formLoading = false;
      //   })
      //   .catch(e => {
      //     _this.formLoading = false;
      //   });
    }
  }
}
</script>

<style lang="scss" scoped>
.align-center {
  text-align: center;
}

.exam-question-item {
  padding: 10px;

  .el-form-item__label {
    font-size: 15px !important;
  }
}

.question-title-padding {
  padding-left: 25px;
  padding-right: 25px;
}
.doForm {
  margin-top: 40px;
}
</style>
